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JQ Query Tester

Filter and transform JSON data using jq queries.

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tester
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A Developer's Guide to the JQ Query Tester

The JQ Query Tester is a powerful playground for filtering, slicing, and transforming JSON data using the jq command-line processor's syntax. It's an indispensable tool for developers and data analysts who need to wrangle complex JSON objects.

Note: This tool uses a backend service to execute the jq command securely.

Features

  • Full jq Syntax Support: Write complex queries using pipes, object construction, select, map, and other standard jq functions.
  • Side-by-Side View: A clear interface shows your raw JSON input on the left and the transformed result on the right.
  • Error Handling: If your JSON is invalid or your jq query has a syntax error, the tool will display a clear error message from the jq processor, helping you debug your query.
  • Modern Editors: Both the input and output panes use the Monaco Editor for a great editing experience with syntax highlighting.

How to Use

  1. Provide Your JSON: Paste the JSON data you want to query into the "JSON Input" editor.
  2. Write Your jq Query: In the "JQ Query" input field below, write your jq expression.
    • Example: To get the names of all active users, you might write .users[] | select(.isActive == true) | .name.
  3. Run the Query: Click the "Run Query" button.
  4. View the Result: The output of the jq command will appear in the "Result" editor on the right.
  5. Copy the Output: Use the "Copy Result" button to grab the transformed data.